1. Large signal analysis of wideband non-linear amplifiers with sum and difference frequency injection
2. Improvement of third-order intermodulation product of RF and microwave amplifiers by injection
3. AlMuhaisen , A . Wright, P., Lees, J., Tasker, P.J., Cripps, S.C., and Benedikt, J. (2010), ‘Novel Wide Band High-efficiency Active Harmonic Injection Power Amplifier Concept’, in2010 IEEE MTT-S International Microwave Symposium Digest (MTT), pp. 664–667
4. Budimir , D . Males-Ilic, N., Milovanovic, B., Tomic, M. (2003), ‘Linearisation of Multichannel Amplifiers with the Injection of Second Harmonics into the Amplifier and Predistortion Circuit’, in6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, Vol. 1, 1–3 October, 214–217